package demo03方法的调用;

//值传递
public class Demo04 {

    public static void main(String[] args) {
        int a = 1;
        System.out.println(a); //1

        Demo04.change(a);   //1
    }

    //返回值为空
    public static  void  change(int a ){
        a = 10;
    }
}
